import org.w3c.dom.ls.LSOutput;

public class Demo {
    public static void main(String[] args) {
        smallCar smallCar = new smallCar();
        smallCar.Driver();
        smallCar.pressSuona("S");


        roundness roundness = new roundness();
        roundness.area(3.1);
        retangle retangle = new retangle();
        retangle.setL(4);
        retangle.setW(5);
        retangle.areas();

    }
}

